.banner{
    position: relative;
    width: 100%;
    height: 285px;
    background-image: url(../images/banner-bg-1.jpg);
    background-repeat: no-repeat;
    background-size: 100%;
    background-position: center;
    display: flex;
    justify-content: center;
}
.banner-main{
    display: flex;
    justify-content: center;
    position: relative;
}
.banner-main .banner-img{
    width: 730px;
    height: 285px;
    position: relative;
    overflow: hidden;
}
.banner-main .banner-img .img-list{
    position: absolute;
    width: auto;
    display: flex;
    justify-content: flex-start;
    /* animation-name: banner;
    animation-duration: 30s;
    animation-iteration-count: infinite; */
}
@keyframes banner {
    0%{
        left:0px;
    }
    33%{
        left:-730px
    }
    66%{
        left:-1460px
    }
}
.banner-main .banner-img .img-list li img{
    width: 730px;
    height: 285px;
    vertical-align:middle;
}
.banner-main .banner-onload{
    margin-left: -4px;
    width: 254px;
    height: 285px;
    background-image: url(../images/download-bg.png);
    position: relative;
}
.banner-onload a{
    position: absolute;
    margin: 186px 0 0 19px;
    width: 215px;
    height: 56px;
}
.banner-onload p{
    color: #8d8d8d;
    position: absolute;
    bottom: 15px;
    width: 100%;
    text-align: center;

}
.banner-onload a:hover{
    background: url(../images/download-bg.png) no-repeat 0 -289px;
width: 215px;
height: 56px;
}
.banner-dian{
    position: absolute;
    bottom: 10px;
    z-index: 10;
    display: flex;
    width: 100%;
    justify-content: center;
}
.banner-dian li{
    width: 20px;
    height: 20px;
    background: url(../images/sprite_02.png) no-repeat 2px -344px;
    cursor: pointer;
}
.banner-dian li:hover,.banner-dian .ative{
    background-position: -16px -344px;
}
.banner-btn-left,.banner-btn-right{
    width: 37px;
    height: 63px;
    position: absolute;
    cursor: pointer;
}
.banner-btn-left{
    background: url('../images/sprite_02.png') no-repeat 0 -360px;
    width: 37px;
    height: 63px;
    left:-68px;
    top: 50%;
    margin-top: -31px;
}
.banner-btn-left:hover{
    background-position: 0 -430px;
}
.banner-btn-right{
    background: url('../images/sprite_02.png') no-repeat 0 -508px;
    width: 37px;
    height: 63px;
    right:-68px;
    top: 50%;
    margin-top: -31px;
}
.banner-btn-right:hover{
    background-position: 0 -578px;
}